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In page Gallipoli:

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During World War I (1914–1918), French, British, and allied forces (Australian, New Zealand, Newfoundland, Irish and Indian) fought the Gallipoli campaign (1915–1916) in and near the peninsula, seeking to secure a sea route to relieve their eastern ally, Russia. The Ottomans set up defensive fortifications along the peninsula and contained the invading forces.[citation needed]